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From: =?ISO-8859-1?Q?Hibou57_=28Yannick_Duch=EAne=29?=
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Newsgroups: comp.lang.ada
Subject: Re: How to convert a string containing two hex digits to a character?
Date: Sat, 9 Jan 2010 03:13:38 -0800 (PST)
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On 9 jan, 11:50, Hibou57 (Yannick Duch=EAne) <yannick_duch...@yahoo.fr>
wrote:
> Number_Type'Pred and Number_Type'Succ are also useful when just
> increment are decrement are to be done on type whose standard
> operators are not visible. It allows to do this computation without
> even requiring a "use type".

Sorry, I'm back again on the topic (I'm joking with me, alone) : if
I'm welcome to close my comments with more wordings, the addition and
substraction have a formal logic definition which is based on the
notion of successor and predecessor, so the most pure and native way
of doing "+1" and "-1" is to use the successor and predecessor
function. Ada knows that, yeah ;p (as its 'Pred and 'Succ are more
universal than its standard "+ and "-" operators)